I have a project consisting of many large documents. When I export to LaTeX, I select the options

one file per documentcreate main and include documents

Exports fine, so far so good.

Let's say I revise one of the documents and want to re-export. How do I export only one of the documents to fit with my existing "main and include document"? If I check the one file for export, Ulysses seems to want to add the preamble, etc. from the main and include document. If I re-generate the main and include document with the exported file, it only has \include{} tags for that one file.

How do I get Ulysses to export a document with inline and paragraph styles processed into LaTeX, but without the (LaTeX) document preamble?